package com.atguigu.security.config;

import com.atguigu.security.custom.CustomMd5PasswordEncoder;
import com.atguigu.security.fillter.TokenAuthenticationFilter;
import com.atguigu.security.fillter.TokenLoginFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * ClassName: WebSecurityConfig
 * Package: com.atguigu.security.config
 * Description:
 *
 * @Author 蹇泽阳
 * @Create 2023/11/18 17:13
 * @Version 1.0
 */
@Configuration
@EnableWebSecurity //@EnableWebSecurity是开启SpringSecurity的默认行为
@EnableGlobalMethodSecurity(prePostEnabled = true)// 开启注解功能，默认禁用注解
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
  @Autowired
  private RedisTemplate redisTemplate;
  
  @Autowired
  private UserDetailsService userDetailsService;
  
  @Autowired
  private CustomMd5PasswordEncoder customMd5PasswordEncoder;
  
  
  @Bean
  @Override
  protected AuthenticationManager authenticationManager() throws Exception {
    return super.authenticationManager();
  }
  
  @Override
  protected void configure(HttpSecurity http) throws Exception {
    // 这是配置的关键，决定哪些接口开启防护，哪些接口绕过防护
    http
        // 关闭csrf跨站请求伪造
        .csrf().disable()
        // 开启跨域以便前端调用接口
        .cors().and()
        .authorizeRequests()
        // 指定某些接口不需要通过验证即可访问。登陆接口肯定是不需要认证的
        .antMatchers("/admin/system/index/login").permitAll()
        // 这里意思是其它所有接口需要认证才能访问
        .anyRequest().authenticated()
        .and()
        // TokenAuthenticationFilter放到UsernamePasswordAuthenticationFilter的前面，这样做就是为了除了登录的时候去查询数据库外，其他时候都用token进行认证。
        .addFilterBefore(new TokenAuthenticationFilter(redisTemplate), UsernamePasswordAuthenticationFilter.class)
        .addFilter(new TokenLoginFilter(authenticationManager(), redisTemplate));
    
    // 禁用session
    http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
  }
  
  @Override
  protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    // 指定UserDetailService和加密器
    auth.userDetailsService(userDetailsService)
        .passwordEncoder(customMd5PasswordEncoder);
  }
  
  /**
   * 配置哪些请求不拦截
   * 排除swagger相关请求
   *
   * @param web
   * @throws Exception
   */
  @Override
  public void configure(WebSecurity web) throws Exception {
    web.ignoring().antMatchers("/admin/modeler/**", "/diagram-viewer/**",
        "/editor-app/**", "/*.html", "/admin/processImage/**", "/admin/wechat/authorize",
        "/admin/wechat/userInfo", "/admin/wechat/bindPhone", "/favicon.ico",
        "/swagger-resources/**", "/webjars/**", "/v2/**", "/swagger-ui.html/**", "/doc.html");
  }
}
